Hose-clamping tool.



No. 783,108. PATENTED FEB. 21, 1905. R. P. DECKER & H. S. GOVBY.

HOSE CLAMPING TOOL.

AlfPLIoATIoN FILED MAR. 7, 1904.

s SHEETLSHBET l.

No.- 783,108. PATENTED FEB. 2l, 1905. R. P. DECKER 6L H. S. COVEY.

HOSE GLAMPING TOOL.

APPLIOATION FILED ma. 7, 1904.

3 SHEETS-SHEET 2.

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3 SHEETS-SHEET 3.

PATENTED FEB. 2l, 1905. R. P. DECKER & H. S. COVEY.

HOSE ULAMPING TOOL.

APPLICATION FILED MAR 7 1904 ge/75am' (70u69, @Md m,

UNITED- STATES Patented February 21, 1905.

PATENT OEEICE.

`RICHARD P. DECKER AND HERBERT S. COVEY, OF CHICAGO, ILLINOIS.

HOSE-CLAIVIPING TOOL.

SPECIFICATION forming part of Letters Patent No. 783,108, dated February21, 1905.`

" 'Application filed March 7,1904. serialNo. 196,973.

To (J1/ZZ whom it may concern.'

Be it known that we, RICHARD P. DECKER' and HERBERT S. CovEY, citizensof the United States, residing in the city of Chicago, county of Cook,and State of Illinois, have invented a certain new and usefulImprovement in Hose- Clamping Tools, of which the following is aspecification.

Our invention relates to hose-clamping tools designed to apply loops ofwire to hose for securing the hose to hose-couplings; and the objects ofthe invention are, first, to provide means for firmly gripping the wire;second, to provide means for tightening the 4loop in position; third, toprovide means for protecting the hose during the tightening of the loop,and, fourth, to provide means for setting' the loop by bending the endsthereof. We attain these objects by the mechanism illustrated in theaccompanying drawings, in which Figure 1 is a general perspective viewillustrating the final position of the tool in applying a wire loop tothe hose. Fig'. 2 is a vertical sectional view of the complete tool.Fig. 3 is a top view of the tool, showing the casing' in section. Fig. 4is a vertical sectional view on the line 4 4, Fig. 5. Fig. 5 is an endView of the tool looking' at the linger end thereof. Fig. 6 is atransverse sectional view of the jaws and finger, taken on the line 6 6,Fig. 4. Fig. 7 is a perspective view of a wire loop which this tool isadaptedy to clamp in position upon the hose. Fig. 8 is a verticalsectional view of a modified form of tool. Fig. 9 is a top view of theform of tool illustrated in Fig. S. Fig. 10 is a transverse sectionalview of the modified form taken on the line 10 10, Fig'. 8.

' Similar numerals denote throughout the several views.`

1 represents the framework of the tool, which is provided at its forwardextremity with the jaw 2, adapted to cooperate with the jaw 3 forsimilar parts gripping the extremities 4 4 of the'wire loop.

Said yjaw 3 forms the forward extremity of the gripping-lever 5, whichis pivoted in said framework 1 by means of the fulcrum-pin 6. Thepreferred form of said jaws 2 and 3 is shown in the end elevation inFig. 5 and in transverse section in Fig. 6. In this preferred I form thejaw2 is substantially circular in outline, but is longitudinallyrecessed, so as to form the keepers 7 7, which keep the jaw 6 inposition laterally. Said keepers also afford a bearingfor thefulcrum-pin 6. At the bottom of said keepers are formed theinwardly-extending ledges 8 8, which constitute grippingsurfaces for theextremities 4 4 of the wire loop.

Said jaw 2 has also a channel 9 between said ledges. 8 for receiving thelower portion ofthe finger 10. The jaw 3 is similarly provided with achannel 11 for receiving said finger 10, and between said channel 11 andthe lateral edges of said jaw 3 are formed the depending lianges 12 12,which afford gripping-surfaces extending to the gripping-surfaces on theledges 8 8. By referring to said Figs. 5 and 6 it will be apparent thatin the hereinabove-described preferred form the parts are so relatedthat the extremities 4 4 of the wire `loop will be laterally confinedbetween the keepers 7 7 and the finger 1() and will be transverselyconfined within said ledges 88 andfianges 12 12. By this constructionthe extremities of the loop are held at their proper distance apartwhile theloop is being applied to the hose. In order to increase thegripping action of the jaws upon the lever, one of said jaws is providedwith a ridge 13, opposite to a recess 14 in the other one of said jaws,as best shown in Fig. 4. This construction is not essential, however, asthe frictional gripping' action of the jaws may be effected byroughening the gripping-surfaces of one or both of said jaws. Pin 6,fixed in the framework 1, constitutes a fulcrum for enabling the jaw 3to be forced toward jaw 2 to grip the extremities 4 of the wire loop.The thumb-screw 16 screws into the rear extremity of said gripping-lever5 at a point opposite to the bridge 17, which constitutes a part of theframework and extends from one lateral edge thereof to the other. Theparts are so related that when said thumb-screw 16 is screwed downwardlyinto the lever 5 the lower extremity of said screw will come intocontact with said bridge 17, and thereby force the rear extremity ofsaid lever 5 upward, with the result that the jaw 3 is forced toward thejaw 2 to grip the wire loop. On account of the screw-thread IOO `theloop. passes through the jaws 2 and 3, which are construction of thescrew 16 and the leverage due to the length of the gripping-lever behindthe fulcrum-pin 6 it follows that the jaw` channeled to receive it,preferably in the manner abovedescribed. Said finger extends lengthwiseof the tool and b y reason of the channeled construction of said jaws 2and 3 is slidable therein lengthwise of the tool. The

forward extremity of said finger 10 has aV groove 18 for receiving thecross part or bow 19 of the wire loop. The lower portion of the forwardextremity of said finger is rounded and terminates in a projection 20,which constitutes a shoe adapted to lic between said bow 19 and the hosein order to protect the hose when said finger is being forced toward itto vtighten the loop in position.

In the preferred construction of tool shown in Figs. 1 to 7, inclusive,the finger 10 lis moved forward and backward by means of a nut 21,adapted to screw onto the screw-threaded extremity of said finger. Inorder that the rotation of said screw may accomplish the projection andretraction of said finger, it is necessary to prevent said nut frommoving lengthwise within the tool. erably, by making saidV nutcylindrical, so as to have a bearing in the cylindrically-aperturedcross-piece 22 of the framework 1, and providing a flange 23 on theinner extremity of said nut to bear against the inner surface of saidcross-piece-22. Said nut is rotated, preferably, by means of thehand-wheel 24, which is provided with a boss 25 for bearing against therear surface of said cross-piece 22. Said hand-wheel is rigidly'fixed tosaid nut 22 by means of the pin 26, or in any other suitable manner.

For convenience and toimpart a .finished appearance to the tool theframework and operating parts are inclosed within a cylindrical casing27, which is provided with a slot 28 for receiving the shank of thethumb-screw 26.

In operating the form of tool shown in Figs. 1 to 7 inclusive, the wireloop is first loosely placed upon the hose, with the extremities 4 ofsaid loop passed underneath the bow 19 of said loop. Said extremities 4of the loop are then inserted into the jaw-apertures, bounded by thekeepers '7, finger 10, ledges 8, and fianges 12. The jaws 2 and 3 arethen forced together' to grip said extremities 4 by screwing thethumb-screw 16 down tightly in the This is obtained, preflever 5, so asto exert considerable pressure against the bridge 17. When theextremities 4 have been gripped sufficiently tight, the hand-wheel 24 isrotated in such a direction as to force the finger 10 toward the bow 19of the loop. The said bow 19 is then adjusted so as to seat within thegroove 18 at the forward extremity of said finger, and the handwheel 24is then further rotated in the same direction, which forces the bow 19forward, and this motion is continued until the loop is tightened uponthe hose as much as may be desired. During this tightening the shoe 2Olies between the hose and the bow 19, and `thereby protects the hosefrom cutting or crushing. After the loop has been tightened su fcientlythe entire tool is thrown backward, so as to bend the extremities 4 backupon themselves, and thereby set the. loop in its tightened position.The thumb-screw 16 is then unscrewed, so as to permit the jaws 2 and`3to release the loop, when the loop will remain tightly set in theposition upon the hose.

rIhe construction and operation of the modified form of tool shown inFigs. 8 to 10, inclusive, is the same as in the form above described,with the following exceptions, to wit: the vforcing means whereby thefinger 10 is pushed outwardly to tighten the loop in posi' tion, theguiding means at the rear extremity of the framework, and the lower partof the outer casing. In said modified form the finger is notscrew-threaded, but is provided with teeth, (preferably upon its loweredge,) thus forming a rack adapted to be driven forward or back by meansof the gear-wheel 30. The rear extremity of said modified form of fingeris guided by the cross-piece 31 of the framework, and in order toprevent the teeth of said rack from catching on said cross-piece it isdesirable to provide the latter with shrouds or flanges 32 32. Saidgear-wheel 30 is rigidly fixed upon the shaft 33, which is journaled inthe lugs 34 34. Said lugs depend from the framework 1 and are preferablyintegral therewith. The shaft 33 is rotated by means of the crank 35. Inorder to protect said gearwheel 30 and impart a finished appearance tothe tool, guards 36 are formed on the tool-casing 27 at points adjacentto said wheel. The operation of the modified form of tool is similar tothe operation of the first-described form, except that the finger 10 iscontrolled by rotating the crank 35 in the proper direction, whichcauses the rack 29 to be driven forward or back, as desired.

We do not wish to be limited tothe specific proportions or details ofconstruction hereinabove described, as it is obvious that these may beconsiderably varied without departing from the spirit of our invention.

What we claim as new, and desire to secure by Letters Patent, is-

1. In a tool for clamping wire loops on hose;

IIO

ISO

a framework having a jaw thereon; a lever pivoted to said framework andalso having a jaw thereon, at least one of said jaws being channeled;means for forcing said jaws together to grip the wire loop; and a fingerguided by the channeled portion of said channeled jaw for tightening thewire loop in position.

2. In a tool for clamping wire loops on hose; a framework having a jawthereon; a lever pivoted to said framework and also having a jawthereon, at least one of said jaws being channeled; a screw engagingsaid lever and said framework for forcing said jaws together upon thewire loop; and means for tightening the wire loopin position upon thehose.

3. In a tool for clamping wire loops on hose,

` the combination of a framework having a jaw thereon; a lever alsohaving a jaw, said lever being fulcrumed on said framework; means forforcing' said jaws together to grip the wire loop; a finger slidinglymounted between said jaws, said finger having a groove therein forreceiving the bow of the wire loop; and means for forcing the groovedportion of said finger outwardly to thereby tighten the loop inposition.

4. In a tool for clamping wire loops on hose, the combination of jaws;means for forcing' said jaws together upon the wire loop to grip thesame; and afinger slidably mounted with reference to said jaws, saidfinger having a grooved forward extremity for receiving the bow of thewire loop whereby the bow of said loop is made to constitute a fulcrumabout which the extremities of the wire loop may be bent.

5. In a tool for clamping metal loops on hose, a pair of jaws forgripping the metal loops; means for tightening said jaws onto saidloops; and a finger movable backward and forward for tightening the loopin position, one of said jaws lying above and one below said finger.

6. In atool for clamping metal loops on hose; a pair of jaws forgripping the metal loops; means for tightening said jaws onto the loops;a finger projecting from between said jaws and being movable back andforth, said finger having a'groove in the extremity thereof forreceiving the bow of the metal loop; and a shoe formed upon the underside of the finger beneath said groove, said shoe rounding upward tothereby tend to slide up around the hose when said finger is movedoutward from the jaws.

7. In a tool for clamping metal loops on hose, a framework; a pair ofjaws for gripping the metal loop; and a finger slidably mounted in saidframework and adapted to engage the bow of the loop for forcing said bowportion away from said jaws, said finger having a bearing near eachextremity for firmly guiding it in its motion.

8. In a tool for clamping metal loops on hose; a framework, provided atits forward extremity with a jaw; a second jaw fulcrumed on saidframework and cooperating with the firstmentioned jaw to grip the metalloop; a finger slidably mounted on said framework for tightening themetal loop in position; and a casing inclosing said jaws, framework andfinger, said casing affording means whereby the tool may be held in thegrasp of the operator.

9. Inatool for clamping metal loops on hose; a finger for engaging thebow of the metal loop; and apair of jaws adjacent to said finger, one ofsaid jaws having' a single ridge thereon and the other of said jawshaving a recess thereon corresponding' to said ridge for bending themetal loop to thereby firmly retain the same when the jaws are forcedthereonto.

RICHARD I. DECKER. HERBERT S. COVEY. Witnesses:

' J. l. MoDoNALD,

HOWARD M. Cox.

